Verdict
Bulk has the higher average TLL Label Score (80 vs 65) across the products we score.
Lower listed average price per serving: Bulk at £0.62/serving on average. Catalogue mixes and serving sizes differ; this is not a comparison of equivalent doses or a prediction of results. Delivery and checkout costs are excluded, and no approved purchase offer is implied.
| Bulk ★ Higher avg | Per4m | |
|---|---|---|
| Research records | 15 | 19 |
| Categories covered | 12 | 12 |
| Avg TLL Label Score | 80 | 65 |
| Approved best score | 97 | 95 |
| Avg cost / serving | £0.62 | £1.33 |
Category head-to-head
Alphabetically selected research examples where both brands have records; no product winner is selected.
Whey
82/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.bulk.com/uk/products/pure-whey-protein/bpb-wpc8-0000, checked 19 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Pure Whey Protein£0.91/serving
★ Winner
55/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/advanced-protein-blend, checked 23 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Per4m
Advanced Protein BlendWhey Isolate
82/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.bulk.com/uk/products/pure-whey-isolate-90/bpb-wpi9-0000, checked 19 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Pure Whey Isolate£1.06/serving
91/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/chocolate-creme-isolate-zero, checked 19 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Per4m
Per4m Isolate£1.17/serving
★ Winner
Creatine
95/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.bulk.com/uk/products/creatine-monohydrate/bpb-cmon-0000, checked 19 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Creatine Monohydrate£0.12/serving
95/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/creatine-sherbet-stick-packs, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Per4m
Creatine Sherbet Stick Packs£1.25/serving
Pre-Workout
62/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.bulk.com/uk/products/complete-pre-workout-advanced/bble-cpad, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Pre-Workout Advanced 500g£0.72/serving
Post-Workout
86/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.awin1.com/cread.php?awinmid=4822&awinaffid=2919631&ued=https%3A%2F%2Fwww.bulk.com%2Fuk%2Fproducts%2Faftermath%2Fbpps-amat, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Creatine, HMB and glutamine are on the label and are not inputs to this post-workout score. Declared leucine is 3 g.
Bulk
Aftermath£1.00/serving
★ Winner
56/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/glutamine, checked 23 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score with weak outcome evidence (glutamine-only). No recovery, gut, or immune outcome claims beside the number.
Per4m
GlutamineHydration
50/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://shop.theliftinglab.co.uk/products/bulk-electrolyte-powder, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Electrolyte Powder£0.26/serving
50/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/hydrate-electrolyte-mix-blackberry, checked 23 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Per4m
Hydrate Electrolyte Mix£0.83/serving
Protein Bars
96/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.awin1.com/cread.php?awinmid=4822&awinaffid=2919631&ued=https%3A%2F%2Fwww.bulk.com%2Fuk%2Fproducts%2Fmacro-munch-protein-bar-v2%2Fmmun-pbar-v2, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Bulk
Macro Munch (Chocolate Hazelnut)£2.99/serving
Multivitamins
78/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://shop.theliftinglab.co.uk/products/bulk-complete-multivitamin-complex, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (multivitamin). NRV-aligned; vitamin B6 is under the UL. The number is not an authorised health claim.
Bulk
Complete Multivitamin Complex£0.30/serving
★ Winner
52/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/greens-apple-mango, checked 23 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (no dedicated greens/multivitamin curve yet). Vitamin C is 1000 mg at the UL edge; TLL does not encourage high intake. The number is not an authorised health claim.
Per4m
GreensVitamin C
84/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://www.bulk.com/uk/products/vitamin-c-tablets-1000mg/bpb-vitc-t000, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin C). 1000 mg sits at the lower UL edge. The labelled dose is unchanged. TLL does not encourage high intake. The number is not an authorised health claim.
Bulk
Vitamin C 1000mg£0.11/serving
84/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://per4mbetter.com/products/vit-c, checked 23 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin-c). 1000 mg per capsule sits at the lower UL edge; TLL does not encourage high intake.
Per4m
Vitamin C Capsules